4. Various measures of cost Douglas Fur is a small manufacturer of fake-fur boots in Detroit. The following table shows the company's total cost of production at various production quantities. Fill in the remaining cells of the following table. Quantity Total Cost (Pairs) (Dollars) Marginal Cost (Dollars) Fixed Cost Variable Cost (Dollars) (Dollars) Average Variable Cost (Dollars per pair) Average Total Cost (Dollars per pair) 0 120 1 200 2 240 3 285 4 3401 425 540